Description

3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-(8Ci,9Ci) is a high-purity, heterocyclic carboxylic acid derivative that serves as a critical building block in advanced organic synthesis. Its unique fused thiophene-lactone structure makes it a valuable intermediate for constructing complex molecular architectures. This compound is primarily sought after by research institutions and pharmaceutical companies engaged in the development of novel active pharmaceutical ingredients (APIs) and specialty fine chemicals. Its consistent quality and reliable supply are essential for process development and scale-up activities in these high-value sectors.

Application

• Pharmaceutical Intermediate: A key synthon in the research and development of novel drug candidates, particularly those targeting the central nervous system or possessing anti-inflammatory properties.
• Agrochemical Synthesis: Used in the creation of advanced pesticide and herbicide molecules, leveraging its heterocyclic core for bioactivity.
• Material Science Research: Serves as a precursor for functionalized monomers in the development of conductive polymers or organic electronic materials.
• Organic Synthesis Building Block: Employed in academic and industrial R&D for constructing complex, sulfur-containing heterocycles and natural product analogs.
• Ligand and Catalyst Development: Utilized in the synthesis of specialized ligands for metal catalysis or organocatalysis.

Basic Information

Product Name	3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-(8Ci,9Ci)
CAS No.	28525-50-0
Molecular Formula	C6H6O3S
Molecular Weight	158.18 g/mol
Synonyms	5-Oxo-4,5,6,7-tetrahydrothieno[3,2-c]pyridine-6-carboxylic acid; Tetrahydro-5-oxothieno[3,2-c]pyridine-6-carboxylic acid; 4,5,6,7-Tetrahydro-5-oxothieno[3,2-c]pyridine-6-carboxylic acid; 6-Carboxy-4,5,6,7-tetrahydro-5-oxothieno[3,2-c]pyridine; 3-Thiophenecarboxylic acid, tetrahydro-5-oxo-; 28525-50-0; Thieno[3,2-c]pyridine-6-carboxylic acid, 4,5,6,7-tetrahydro-5-oxo-
EINECS	Contact for details

Quality Control

Our production of 3-Thiophenecarboxylicacid,Tetrahydro-5-Oxo-(8Ci,9Ci) adheres to stringent in-process controls and final release testing to ensure batch-to-batch consistency and high purity. Each lot is analyzed using validated methods including HPLC, NMR, and IR spectroscopy. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with every shipment to support your quality and regulatory requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). Due to its hygroscopic nature, the container must be kept tightly sealed after opening to minimize exposure to atmospheric moisture. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.1%
Heavy Metals	≤ 20 ppm

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.